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Cardiac magnetic resonance imaging for the diagnosis of
Cardiac magnetic resonance imaging for the diagnosis of

... it is difficult to differentiate EMF from other restrictive cardiomyopathies. Currently, echocardiography is used for the initial investigations that might lead to a diagnosis of EMF. In this study, we evaluate the usefulness of cardiac magnetic resonance (CMR) imaging as an alternative noninvasive ...
PERSPECTIVE
PERSPECTIVE

... the disease, resulting in over 2.4 million deaths with an estimated direct and indirect cost of $190.3 billion in 2008.1 The disease often manifests as a heart attack, which is the sudden blockage of blood in the coronary artery caused by atherosclerotic buildup of plaque on the walls of the blood v ...
heart rate changes during different phases of menstrual cycle
heart rate changes during different phases of menstrual cycle

... phases of the menstrual cycle. The aim of the research work was to study heart rate changes during different phases of normal menstrual cycle using group of tests and to establish the validity of such conflicting results. Methods: Heart rate changes were evaluated in 30 female students of J.S.S. Med ...
Liver function tests in patients with acute heart failure
Liver function tests in patients with acute heart failure

... heart failure (AHF) is complex and not fully un‑ derstood.1 Only recently, it has been hypothesized that an episode of acute decompensation affects not only the cardiovascular system itself, but may also deteriorate the function of other organs, caus‑ ing serious clinical consequences. Traditionally ...
Complete thoracic ectopia cordis
Complete thoracic ectopia cordis

... neonatal period often produces compression, kinking of the great vessels and a low cardiac output [2,8]. However, Amato has suggested that it is worthwhile making an attempt at placing the heart even partially within the thoracic cavity at the first stage [6]. This would make subsequent procedures e ...
Assessment of longitudinal left ventricular systolic function by
Assessment of longitudinal left ventricular systolic function by

... Doppler velocity (TDV) in newly diagnosed mild to moderate hypertensive patients. Methods: Our cross-sectional and observational study population consisted of 57 patients and 48 normotensive control subjects. Patients with obesity, diabetes mellitus, regional wall motion abnormality, secondary hyper ...
A Pocket Guide to Common Arrhythmias
A Pocket Guide to Common Arrhythmias

... The sinoatrial (SA) or sinus node high in the right atrium, has the highest spontaneous discharge rate of 60–100 beats/min at rest, and therefore acts as a natural pacemaker and initiates atrial depolarisation. The impulse spreads from the sinoatrial node through the muscle mass of the atria to reac ...
Chapter 6
Chapter 6

... –Changes begin to occur at elevations greater than 3,900 feet (1,200 m): •Increased pulmonary ventilation •Increased cardiac output at rest and during submaximal exercise due to increases in heart rate –Values begin to return toward normal within two weeks. –Several chronic physiological and metabol ...
Open Access
Open Access

... mm-sec) enlargement, incomplete right bundle branch block and ST-T changes. Echo-Doppler study taken around this period disclosed asymmetric septal hypertrophy (20 mm) and hypertrophic right ventricular free wall (10 mm). Left cavity size was normal (end-diastolic ...
Cardioversion of acute atrial fibrillation in the emergency department
Cardioversion of acute atrial fibrillation in the emergency department

... needs to balance the risk of stroke against the risk of major bleeding, especially intracranial hemmorrhage, which is the most feared complication of anticoagulation therapy and confers a high risk of death and disability. HAS-BLED score which is a formal bleeding risk assessment (Table 3) is recom ...
Carbamazepine Communication - South West Yorkshire Partnership
Carbamazepine Communication - South West Yorkshire Partnership

... Treatment should be withdrawn immediately. Other very rare but potentially serious adverse events include renal failure, interstitial nephritis, neuroleptic malignant syndrome, hyponatraemia and serotonin syndrome. The most common problems associated with carbamazepine are dizziness, drowsiness, ata ...
ATRIAL FIBRILLATION: MULTI-DETECTOR CT EVALUATION OF
ATRIAL FIBRILLATION: MULTI-DETECTOR CT EVALUATION OF

... Atrial fibrillation is one of the most common cardiac arrhythmias and its etiology is not clearly understood. It has been associated with the enlargement of the left atrium, but a direct correlation between the atrium and pulmonary venous morphological characteristics has not been investigated. Our ...
Dobutamine-induced augmentation of left ventricular ejection
Dobutamine-induced augmentation of left ventricular ejection

... the significant improvement of some non-ischaemic dilated cardiomyopathy patients with medical therapy, further refinement in the ability to predict the prognosis of patients with severe left ventricular systolic dysfunction is desirable. Several observations made over the past two decades suggest a ...
View Slides
View Slides

... • Primary univentricular pacing (n = 42) – 25 pts: no further pacing intervention • Median F/U = 4.2 yrs (range, 4 d - 16 yrs) – 17 pts: upgraded to BiVP • Median time from initial univentricular pacer insertion to BiVP upgrade = 3 yrs (range, 3 mths - 22 yrs) • Median time from upgrade to demonstra ...
Exploration of the Cause of the Low Intensity Aortic Component of
Exploration of the Cause of the Low Intensity Aortic Component of

... SUMMARY This investigation was undertaken to explore the cause of the diminished second sound (S2) that may occur in normotensive patients with poorly performing ventricles. Intraaortic sound and pressure were measured in 16 patients with angina; eight had normal ventricular performance (ejection fr ...
09221106, 09221178,09221202 & 09221183
09221106, 09221178,09221202 & 09221183

... clinical diagnosis and monitoring the heart for abnormalities. A signal resembling the actual ECG is required to develop, and service ECG equipment. So tests are made on humans. This is very unethical. The ECG simulator is a device that can be used to test the equipment instead. It removes the poten ...
Impact of Pacing on Systemic Ventricular Function in L
Impact of Pacing on Systemic Ventricular Function in L

... • Primary univentricular pacing (n = 42) – 25 pts: no further pacing intervention • Median F/U = 4.2 yrs (range, 4 d - 16 yrs) – 17 pts: upgraded to BiVP • Median time from initial univentricular pacer insertion to BiVP upgrade = 3 yrs (range, 3 mths - 22 yrs) • Median time from upgrade to demonstra ...
9. cardiac cycle and heart sounds
9. cardiac cycle and heart sounds

... •  Throughout  this  and  the  previous   two  phases,  the  atrium  in  diastole   has  been  filling  with  blood  on  top  of   the  closed  AV  valve,  causing  atrial   pressure  to  rise  gradually  (yellow).   •  The  "v"  wave ...
state of michigan michigan administrative hearing system
state of michigan michigan administrative hearing system

... congestive heart failure; Coronary artery disease suggested by echocardiogram and contributing to the low ejection fraction; Chronic atrial fibrillation, contributing to congestive heart failure; Severe depression, treated and improved; Morbid obesity; Acute renal failure, monitored and improved to ...
Development of the cardiac conduction system
Development of the cardiac conduction system

... network system. Thus, the main function of the ventricular conduction network is to rapidly propagate and transmit impulses to the ventricular muscle. The fast conduction cells are scattered throughout the myocardium, but can be distinguished from ventricular muscle cells by their distinct electroph ...
UNIVERSITY OF MALTA
UNIVERSITY OF MALTA

... was to investigate the physiological relevance of this current by physiologically and pharmacologically characterising IAB in the guinea pig, a species with a ventricular action potential (AP) similar in profile to that of the human. ...
UNIT –2 - E
UNIT –2 - E

... 7. Let-go current of men increases with the log frequency 8. Microshocks may occur due to flow of few mA current across the cardiac muscles 9. Let-go current are higher for men than women 10.Ground fault oriented electric shocks can be avoided by using isolated power supplies. ...
Ventricular Arrhythmias in Adult Aortic Stenosis
Ventricular Arrhythmias in Adult Aortic Stenosis

... ventricle and the consequent myocardial ischemia may trigger ventricular arrhythmias or bradyarrhythmias similar to those seen in acute myocardial infarc¬ tion, even in absence of significant coronary artery ...
Predictors of Cardiovascular Disease in Patients with Type 2
Predictors of Cardiovascular Disease in Patients with Type 2

... Conclusion: Increased age, lower HDL-C, low and moderate physical activity levels, and working status appeared to be significant predictive factors of CVD among the T2DM patients studied. ...
Influence of pneumoperitoneum on left ventricular filling pressures
Influence of pneumoperitoneum on left ventricular filling pressures

... mates of LV filling pressures than other methods. Brain-natriuretic peptide (BNP) is a cardiac neurohormone secreted from the ventricles in response to ventricular volume expansion and pressure overload6-7. BNP levels may also reflect diastolic dysfunction8-10. This hormone has become firmly establi ...
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Myocardial infarction



Myocardial infarction (MI) or acute myocardial infarction (AMI), commonly known as a heart attack, occurs when blood flow stops to a part of the heart causing damage to the heart muscle. The most common symptom is chest pain or discomfort which may travel into the shoulder, arm, back, neck, or jaw. Often it is in the center or left side of the chest and lasts for more than a few minutes. The discomfort may occasionally feel like heartburn. Other symptoms may include shortness of breath, nausea, feeling faint, a cold sweat, or feeling tired. About 30% of people have atypical symptoms, with women more likely than men to present atypically. Among those over 75 years old, about 5% have had an MI with little or no history of symptoms. An MI may cause heart failure, an irregular heartbeat, or cardiac arrest.Most MIs occur due to coronary artery disease. Risk factors include high blood pressure, smoking, diabetes, lack of exercise, obesity, high blood cholesterol, poor diet, and excessive alcohol intake, among others. The mechanism of an MI often involves the rupture of an atherosclerotic plaque, leading to complete blockage of a coronary artery. MIs are less commonly caused by coronary artery spasms, which may be due to cocaine, significant emotional stress, and extreme cold, among others. A number of tests are useful to help with diagnosis, including electrocardiograms (ECGs), blood tests, and coronary angiography. An ECG may confirm an ST elevation MI if ST elevation is present. Commonly used blood tests include troponin and less often creatine kinase MB.Aspirin is an appropriate immediate treatment for a suspected MI. Nitroglycerin or opioids may be used to help with chest pain; however, they do not improve overall outcomes. Supplemental oxygen should be used in those with low oxygen levels or shortness of breath. In ST elevation MIs treatments which attempt to restore blood flow to the heart are typically recommended and include angioplasty, where the arteries are pushed open, or thrombolysis, where the blockage is removed using medications. People who have a non-ST elevation myocardial infarction (NSTEMI) are often managed with the blood thinner heparin, with the additional use angioplasty in those at high risk. In people with blockages of multiple coronary arteries and diabetes, bypass surgery (CABG) may be recommended rather than angioplasty. After an MI, lifestyle modifications, along with long term treatment with aspirin, beta blockers, and statins, are typically recommended.Worldwide, more than 3 million people have ST elevation MIs and 4 million have NSTEMIs each year. STEMIs occur about twice as often in men as women. About one million people have an MI each year in the United States. In the developed world the risk of death in those who have had an STEMI is about 10%. Rates of MI for a given age have decreased globally between 1990 and 2010.
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